Research on the Prevalence of Anorexia and Bulimia Has Determined

Research on the prevalence of anorexia and bulimia has determined that these disorders are:

A) most common in upper class women from cultures that have to deal with food scarcity and famine.
B) most common in industrialized cultures, where beauty is equated with thinness, and among Blacks more so than Whites.
C) most common in industrialized cultures, where beauty is equated with thinness, regardless of ethnicity.
D) equally common in almost all cultures of the world.